This page shows Tax-Brackets.org's archived Oklahoma tax brackets for tax year 2018. This means that these brackets applied to all income earned in 2017, and the tax return that uses these tax rates was due in April 2018.

Both Oklahoma's tax brackets and the associated tax rates were last changed four years prior to 2018 in 2014.

2018 Oklahoma Tax Deduction Amounts

Tax-Brackets.org also maintains an archive of important Oklahoma income tax exemption amounts, including the Oklahoma Standard Deduction, the Oklahoma Personal Exemption, and the Oklahoma Dependent Deduction. The values of these deductions for tax year 2018 are as follows:

Sources & Citations

Disclaimer: While we do our best to keep our historical Oklahoma income tax rates up to date and complete, we cannot be held liable for errors or omissions. Is info on this page missing or out-of-date? Please let us know so we can fix it!

Tax Data Sources:

The Oklahoma tax brackets on this page sourced from the Oklahoma Department of Revenue in 2018. Please contact us if any of our Oklahoma tax data is incorrect or out of date.